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8. Subordinated Convertible Debentures Payable (Details Narrative) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Subordinated Convertible Debentures Payable Details Narrative    
Subordi-nated convertible debentures $ 8,552,000PGAI_SubordinatedConvertibleDebentures $ 9,059,000PGAI_SubordinatedConvertibleDebentures
Accrued and unpaid interest 21,389,000PGAI_AccruedAndUnpaidInterest 21,007,000PGAI_AccruedAndUnpaidInterest
Subordinate to senior indebtedness $ 3,198,000PGAI_SubordinateToSeniorIndebtedness $ 3,198,000PGAI_SubordinateToSeniorIndebtedness